Question

What is the major function of the placenta in humans?

• A. Hormonal regulation
• B. Nutrient exchange
• C. Blood clotting
• D. Oxygen supply

Hint:

The placenta is crucial for supplying oxygen and nutrients to the fetus, as well as removing waste products. Its main function is nutrient and gas exchange.

Answer 1

The Correct Option is B

Step 1: Understanding the placenta's role.
The placenta is a vital organ during pregnancy that connects the developing fetus to the mother's uterine wall, enabling nutrient and waste exchange, and supporting fetal growth.
Step 2: Analysis of options.

• (A) Hormonal regulation: Incorrect. The placenta does secrete hormones (such as hCG), but its primary role is nutrient and gas exchange, not just hormonal regulation.
• (B) Nutrient exchange: Correct. The placenta is primarily responsible for exchanging nutrients, oxygen, and waste products between the mother and the fetus.
• (C) Blood clotting: Incorrect. Blood clotting is not the primary function of the placenta; this function is more related to the body’s circulatory system.
• (D) Oxygen supply: Incorrect. While the placenta supplies oxygen to the fetus, its main function is broader, including nutrient exchange and waste removal, not just oxygen supply.

Step 3: Conclusion.
The placenta’s major function is nutrient exchange between the mother and fetus. Final Answer:} Nutrient exchange.